WAJ or waj can refer to:
AirAsia Japan, Japanese low-cost airline Algeria Press Service, an Algerian news agency Waffa language, a Trans–New Guinea language spoken in Papua New Guinea, by ISO 639 code Water Authority of Jordan, responsible for water supply and sanitation in Jordan Wawoi Falls Airport, in Papua New Guinea; see List of airports by IATA airport code: W Windham-Ashland-Jewett Central School, a public K-12 school located in Windham, New York, U.S. Woman's Art Journal, a feminist art journal